2007 BMW P0335: What It Means & Is It Safe to Drive?
P0335 on the 2007 BMW: Crankshaft Position Sensor A Circuit Malfunction. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
What this code means
The PCM is not receiving the expected signal from the crankshaft position sensor (CKP). This sensor tells the ECM the exact position and speed of the crankshaft. Without it, the engine may not start or will stall and run poorly.
Common causes on the 2007 BMW
- Failed crankshaft position sensor
- Damaged or corroded sensor wiring/connector
- Tone ring (reluctor wheel) damage or debris
- Failed PCM (rare)
Symptoms
- Engine won't start or stalls unexpectedly
- Check Engine Light on
- Engine cranks but will not fire
- Intermittent stalling at speed
Typical fixes
- Replace crankshaft position sensor
- Inspect and repair wiring harness and connector
- Check tone ring for damage or packed debris
Repair cost range
For a 2007 BMW, repairs for P0335 typically fall between $100 and $350, depending on the root cause and labor rates in your area.
Known issues on BMW
BMW N52 and N54 P0335 can be caused by a failed CKP sensor or Valvetronic timing issues. Confirm the reluctor ring on the crankshaft is intact before replacing the sensor—the ring can separate on high-mileage N54 engines.
Most commonly affected models